Certain notched or scalloped stone tablets of the mound buildersv. 8No. 1101–108, pls. 12, 13, 2 figs.
Holmes, William H. 1906. "Certain notched or scalloped stone tablets of the mound builders." American Anthropologist, 8, (1) 101–108, pls. 12, 13, 2 figs.